Chemical Film (Alodine or Iridite) Plating Process

Chemical Film, also known as “Alodine” or “Iridite”, is a common plating process used for the protection of aluminum surfaces. This chemical process produces a corrosion resistant and protective film on aluminum and aluminum alloys - with or without color. Darker coatings usually provide the best protection, and colors are classified as “clear” or “gold”. The Classification per MIL-C-5541 of the aluminum part is determined by the amount of exposure in the Chemical Film solution. 

RoHS COMPLIANT IRIDITE

AFT offers both traditional hexavalent Chemical Film and RoHS hex-free Chemical Film coatings. We have selected MacDermid Iridite NCP non-chrome Passivate, as this process has been developed in response to the ELV, RoHS and WEEE directives. Iridite NCP does not contain lead, cadmium, chromium (hexavalent or trivalent), mercury or PBB/PBDE compounds. Iridite NCP is an environmentally-friendly process that can be used as a final finish on aluminum, as well as a paint base, high performance topcoat, powder coat, lacquers, or as a bonding base for rubber. Iridite is always clear.

CHEM FILM ADVANTAGES

• They are easy to use and offer a variety of valuable properties to extend the service life of parts
• Conversion Coatings are Economical
• Minimize Surface Oxidation of Aluminum Parts
• Very Thin Coating: No Dimensional Change
• Primer for Paint Adhesion and other topcoats

CHEMISTRY & PRODUCTION

• AFT, Chemistry used for Traditional hexavalent  Chemical Film is MacDermid Iridite 14-2 and for the RoHS non chrome we use MacDermid IRIDITE NCP chemistry
• Production process tanks are: 10 FT. long X  2  FT. wide X 4 FT deep

Please submit a Request for Quote form or contact us at 972-988-1999 with any questions.

Download PDF Brochure of

AFT's Chemical Film Process